1. Prepare tools and materials: according to the specific situation, prepare appropriate tools, such as screwdrivers, wrenches, suction cups, wire strippers, etc.

2. Turn off the power supply and disconnect: Before any disassembly operation, ensure that the terahertz energy meter is turned off and disconnected from the power supply and other external devices.

3. Dismantle the housing: according to the specific structure of the terahertz energy meter, find and remove the housing fixing screws or buckles.

4. Pay attention to the internal layout: after the shell is opened, observe the internal layout and be familiar with the components of the instrument as much as possible.

5. Disconnect and disassemble components: Disconnect cables and disassemble circuit boards or other components as required.

6. Pay attention to electrostatic protection: During disassembly, pay attention to electrostatic protection.

7. Record of disassembly process: During the disassembly process, take photos or record each step.